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CCL24调节了原发性硬化胆道炎的胆道炎症和纤维化
Raanan Greenman1, Michal Segal-Salto1, Neta Barashi1
1Chemomab Therapeutics Ltd., Tel Aviv, Israel.
JCI insight
|June 22, 2023
概括
阻断化学因子CCL24 (C-C动机化学因子联结体24) 会降低原发性硬化胆管炎 (PSC) 肝炎炎和纤维化. 这项研究表明CCL24是PSC患者的潜在治疗标.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 免疫学 免疫学 免疫学
- 纤维化研究 纤维化研究
背景情况:
- 化学因子CCL24 (C-C动机化学因子联结体24) 涉及慢性纤维性疾病,包括肝脏疾病.
- CCL24有助于肝炎和纤维化,实验性阻断显示了治疗潜力.
研究的目的:
- 调查CCL24在原发性硬化性胆道炎 (PSC) 中的作用.
- 在相关的PSC小鼠模型和人类细胞中评估阻断CCL24的治疗疗效.
主要方法:
- 使用多药性耐药性基因2-Knockout (Mdr2-/-) 的小鼠作为PSC模型.
- 服用CCL24中和抗体 (CM-101) 和评估肝脏病理.
- 采用空间转录学并研究了人类初级胆细胞,巨细胞和肝脏星状细胞.
- 在人类PSC肝脏活检和血清水平中分析了CCL24表达.
主要成果:
- 在Mdr2-/-小鼠中,CM-101治疗显著降低了炎症,纤维化和胆固化标志物.
- CCL24 中和降低了胆细胞的增殖和衰老.
- CCL24诱导了人类胆细胞和肝星细胞的增殖,通过抑制减弱了效应.
- 在PSC患者的肝活检中观察到高CCL24表达和与纤维化得分相关的血清水平.
结论:
- CCL24在PSC中高度表达,并驱动关键疾病病理.
- 阻断CCL24通过减轻PSC中的肝炎,纤维化和胆固醇病的治疗潜力.
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